Alvah rittenhouse



A.V RITTBNHOUSB.

vLamp Stove. y

Patented NOV.8, 1870.

ttiib I %ittt5 @zum ditto.

Letters Patent No. 109,054, dated November 8, 1870.

The Schedule referred to iu these Letters Patent and making part of the same.

I, ALvAn 1t1rtinsnoUsE,oft-he city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Device for Heating Food, Medicinal Preparations, Sac.

'lhc object ot' my invention is to provide a device for nurseries, hospitals, sick-rooms, dic., in order to prepare and keep warm any preparation of food, drinks, medicinal preparations, stimulants, cloths, lotions, dccoctions, or for warming or softening plastcrs, 8:0.

My invention consists oi' one or more metallic pots formed with concave bottoms, he said pots being provided with openings, in which are inserted tubes, passing up through the pots in a conical form for the passage of the heat from the lamp iu order to warm such substances or liquids as may be placed inthe pots; also, for the purpose ot warming cloths or plas ters without interfering with the contents f the pots.

The lamp used (which is any ordinary coal-oil or other style iu which illuminating oils are burned) is provided wtha low glass chimney, and will give suticicnt light in order that the attendant may see to manipulate the article to bc administered to the patient. v

Figure l isa vertical section of my invention, showing thc same applied to an ordinary coal-oil lamp with a low glass chimney.

Figure 2 is a topview of the lower pot, with upper pot and cover removed, in order to show the interior ot' thc same, (the 4arrangement of the tubes are the same in both pots.)

Figure 3 is a view showing the concave form of the bottom of the pots, and the arrangement ot' the tubes for heating the interior of same.

Figures 4, 5, and 6 arc detached views ot' thc covers orrings used. Y

P is a metallic pot, formed somewhat in the shape oian ordinary tea-pot.y lhc bottom!) of said pot is made concave and provided with circular` openings, as'shown in iig. 3, in which arc inserted tubes t t1 t2,- which pass up through thc center of the pot and incline toward a common center, where they are retained firmly in place by means ot' a band, C, as shown in tig. 2.

The upper part of the pot P is provided with a circular rim, r, and ledge l, as shown infig. 2. ,On said ledge is placed a cover or 1ing,o,.fig. 5, which is provided with an opening in the center in order to allow the upper part of the band C to pass through and the cover to inclose the opening ot' the top of the :pot and surround the band.

`Fitting in and resting ou the rim r is a cover or ring, O1, iigs. l and 6, on which sets the pot P', which is of the same construction as pot P.

-\Vith the exception of the rim r, the pot P' is inclosed by means of the cover or ring O2, iig. 4.

It will be seen from the above'description that when the pot P is set on the chimney of the lamp that theA llame strikes the concave bottom b ,'1 the darne and heat will ascend up through the tube t tl t2, thus heating .the contents of the pot P. The heat then passes out through the upper ends of' the tubes, `surrounded by the band C. -The heat is sufficicutatthis point to warm plasters, poultices, 85e., or by placingon the ring or cover O",whi'ch iits in and rests on the rim fr, the pot P' can be set and its contents heated by the caloric passing through the tubes, which are constructed in the same lnanner as the tubes in pot P.

It' desired, the ring or cover O1, tig. 6, can be placed immediately on the chimney of the lamp and the pot P' set thereon.

Vihat claim, and desire to secure by Letters Patent, is

The construction of "the pots P or P', provided with tubes t t1 t2, concave bottom b, band C, covers or rings O Ol O2, so as to operate substantially as and for the purpose specified.

ln witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses. ALVAH RITTENHOUSE.- Witnesses:

FRANK Stroom, HARRY W. GAMBLE. 

